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CVE-2023-28801

Estado: ModificadaCrítica (9.8)—

An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Zscaler — Zscaler Internet Access Admin Portal

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-28801",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-28801",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-01T17:51:04.398078Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "cve@zscaler.com",
        "cvssData": {
          "scope": "CHANGED",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "cvssData": {
          "scope": "UNCHANGED",
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        "exploitabilityScore": 3.9
      }
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  "affected": [
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      "affectedData": [
        {
          "vendor": "Zscaler",
          "product": "ZIA Admin Portal",
          "versions": [
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  "published": "2023-08-31T14:15:08.420",
  "references": [
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      "url": "https://help.zscaler.com/zia/release-upgrade-summary-2023",
      "tags": [
        "Release Notes"
      ],
      "source": "cve@zscaler.com"
    },
    {
      "url": "https://help.zscaler.com/zia/release-upgrade-summary-2023",
      "tags": [
        "Release Notes"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cve@zscaler.com",
      "description": [
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          "lang": "en",
          "value": "CWE-347"
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    },
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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    {
      "lang": "en",
      "value": "An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.\n\n"
    },
    {
      "lang": "es",
      "value": "Una verificación incorrecta de la firma criptográfica en la autenticación SAML de la interfaz de administración de Zscaler permite una escalada de privilegios. Este problema afecta a la interfaz de administración: desde la 6.2 anterior a la 6.2r."
    }
  ],
  "lastModified": "2026-06-17T05:48:48.100",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "6.2r",
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          "operator": "OR"
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  "sourceIdentifier": "cve@zscaler.com"
}